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    • 1. 发明授权
    • Methods and systems to reduce channel selection transition delay in a digital network
    • 降低数字网络中信道选择转换延迟的方法和系统
    • US08245264B2
    • 2012-08-14
    • US11442500
    • 2006-05-26
    • John ToebesWen-Hsiung ChenJack ChamPing Li
    • John ToebesWen-Hsiung ChenJack ChamPing Li
    • H04N7/173
    • H04N7/163H04N21/2389H04N21/4384H04N21/4385H04N21/64322H04N21/64784H04N21/6581
    • A method of reducing the channel selection transition delay from a first media data channel to a second media data channel includes the operations of accumulating an independent media data frame and any related dependent media data frames based on a first decoder decoding at least a first portion of a second channel to form a second channel current media state, receiving a channel change request from a second decoder to change decoding to the second media channel, identifying an insertion position for a current independent frame relative to a current second channel frame set, and generating the current independent frame based on the second channel current media state corresponding to the insertion position. The dependent media data frames are used to modify the second channel current media state based on the independent media data frame.
    • 减少从第一媒体数据信道到第二媒体数据信道的信道选择转换延迟的方法包括:基于第一解码器对至少第一部分的第一部分进行解码的累加独立媒体数据帧和任何相关的相关媒体数据帧的操作 形成第二信道当前媒体状态的第二信道,从第二解码器接收信道改变请求以将解码改变为第二媒体信道,识别当前独立帧相对于当前第二信道帧集合的插入位置,以及生成 基于与插入位置对应的第二通道当前媒体状态的当前独立帧。 依赖媒体数据帧用于基于独立媒体数据帧来修改第二信道当前媒体状态。
    • 3. 发明授权
    • Video insertion information insertion in a compressed bitstream
    • 在压缩比特流中插入视频插入信息
    • US08681874B2
    • 2014-03-25
    • US12047996
    • 2008-03-13
    • Gary Fujen ChengWen-Hsiung ChenMichael Pereira
    • Gary Fujen ChengWen-Hsiung ChenMichael Pereira
    • H04N7/12
    • H04N19/48G06Q30/02H04N21/2343H04N21/235H04N21/435
    • Particular embodiments generally relate to video insertion information insertion in a compressed bitstream. In one embodiment, a compressed bitstream of data is received. Video insertion information to be added to the bitstream is then determined. One or more macroblocks out of a plurality of macroblocks are determined in the compressed bitstream. The macroblocks are determined in the compressed domain and not the spatial domain. Information is selectively inserted for the video insertion information for the determined one or more macroblocks in the compressed bitstream. For example, encoded macroblocks for the video insertion information may replace the determined one or more macroblocks. Also, the one or more macroblocks may be decoded and information for the video insertion information is added to the decoded one or more macroblocks, and then the one or more macroblocks are re-encoded with the information. The re-encoded macroblocks may then replace the determined one or more macroblocks in the compressed bitstream.
    • 具体实施例通常涉及在压缩比特流中插入视频插入信息。 在一个实施例中,接收压缩的数据比特流。 然后确定要添加到比特流的视频插入信息。 在压缩比特流中确定多个宏块中的一个或多个宏块。 在压缩域中确定宏块,而不是空间域。 针对所确定的压缩比特流中的一个或多个宏块的视频插入信息选择性地插入信息。 例如,用于视频插入信息的编码宏块可以替代所确定的一个或多个宏块。 此外,一个或多个宏块可以被解码,并且用于视频插入信息的信息被添加到解码的一个或多个宏块,然后一个或多个宏块被重新编码。 再编码的宏块然后可以替换所确定的压缩比特流中的一个或多个宏块。
    • 6. 发明授权
    • Process for manufacturing self-assembled nanoparticles
    • 制造自组装纳米粒子的方法
    • US07294202B2
    • 2007-11-13
    • US11005547
    • 2004-12-06
    • Wei-Kuo ChenMing-Chih LeeWu-Ching ChouWen-Hsiung ChenWen-Cheng Ke
    • Wei-Kuo ChenMing-Chih LeeWu-Ching ChouWen-Hsiung ChenWen-Cheng Ke
    • C30B29/60
    • C30B29/406B82Y10/00B82Y30/00C30B25/00C30B25/14C30B29/40C30B29/48C30B29/52C30B29/605Y10T428/25
    • Process for fabricating self-assembled nanoparticles on buffer layers without mask making and allowing for any degree of lattice mismatch; that is, binary, ternary or quaternary nanoparticles comprising Groups III-V, II-VI or IV-VI. The process includes a first step of applying a buffer layer, a second step of turning on the purge gas to modulate the first reactant to the lower first flow rate, then the second reactant is supplied to the buffer layer to form a metal-rich island on the buffer layer, and a third step of turning on purge gas again to modulate the first reactant to the higher second flow rate onto the buffer layer. On the metal-rich island is formed the nanoparticles of the binary, ternary or quaternary III-V, II-VI and IV-IV semiconductor material. This is then recrystallized under the first reactant flow at high temperature forming high quality nanoparticles.
    • 在没有掩模制造并允许任何程度的晶格失配的情况下在缓冲层上制造自组装纳米颗粒的方法; 即包含III-V族,II-VI族或IV-VI族的二元,三元或四元纳米颗粒。 该方法包括施加缓冲层的第一步骤,打开吹扫气体以将第一反应物调节到较低的第一流速的第二步骤,然后将第二反应物供应到缓冲层以形成富金属的岛 以及再次打开吹扫气体以将第一反应物调节到较高的第二流量的缓冲层上的第三步骤。 在富金属的岛上形成二元,三元或四元III-V,II-VI和IV-IV半导体材料的纳米颗粒。 然后在高温下在第一反应物流下重结晶形成高质量的纳米颗粒。
    • 8. 发明授权
    • Digital video compression system and methods utilizing scene adaptive
coding with rate buffer feedback
    • 数字视频压缩系统和利用速率缓冲器反馈的场景自适应编码的方法
    • US4394774A
    • 1983-07-19
    • US277981
    • 1981-06-26
    • Robert D. WidergrenWen-Hsiung ChenStanley C. FralickAndrew G. Tescher
    • Robert D. WidergrenWen-Hsiung ChenStanley C. FralickAndrew G. Tescher
    • G06T9/00H04N7/26H04N7/30H04N7/32H04N11/04G06K9/36H04B3/46H04N7/12H04N9/32
    • H04N11/044H04N19/126H04N19/152H04N19/176H04N19/186H04N19/196H04N19/197H04N19/423H04N19/60H04N19/88H04N19/124H04N19/146H04N19/50
    • A digital video compression and expansion system and its methods for compressing and expanding digitalized video signals in real time at rates up to NTSC color broadcast rates are disclosed. The system compressor receives digitalized video frames divided into subframes, performs in a single pass a spatial domain to transform domain transformation in two dimensions of the picture elements of each subframe, normalizes the resultant coefficients by a normalization factor having a predetermined compression ratio component and an adaptive rate buffer capacity control feedback component, to provide compression, encodes the coefficients with a minimum redundancy coding scheme and stores them in a first rate buffer memory asynchronously at a high data transfer rate from which they are put out at a slower, synchronous rate. The compressor adaptively determines the rate buffer capacity control feedback component in relation to instantaneous data content of the rate buffer memory in relation to its capacity, and it controls the absolute quantity of data resulting from the normalization step so that the buffer memory is never completely emptied and never completely filled. In expansion, the system essentially mirrors in reverse the steps performed during compression. An efficient, high speed decoder forms an important aspect of the present invention. The compression system forms an important element of a disclosed color broadcast compression system.
    • 公开了一种数字视频压缩和扩展系统及其用于以NTSC彩色广播速率的速率实时压缩和扩展数字化视频信号的方法。 系统压缩器接收被划分为子帧的数字化视频帧,单次执行空间域以在每个子帧的像素的二维中变换域变换,通过具有预定压缩比分量的归一化因子对所得到的系数进行归一化, 自适应速率缓冲器容量控制反馈分量,以提供压缩,用最小冗余编码方案对系数进行编码,并将它们以高数据传输速率异步地存储在第一速率缓冲存储器中,从而以较慢的同步速率将其推出。 压缩机相对于其容量自适应地确定速率缓冲器容量控制反馈分量与速率缓冲存储器的瞬时数据内容的关系,并且控制由归一化步骤产生的数据的绝对数量,使得缓冲存储器从不完全清空 并从未完全填满。 在扩展中,系统基本上反映了在压缩期间执行的步骤。 有效的高速解码器形成本发明的重要方面。 压缩系统形成了所公开的彩色广播压缩系统的重要元件。
    • 9. 发明授权
    • System and method for video coding in a dynamic environment
    • 在动态环境中进行视频编码的系统和方法
    • US08934026B2
    • 2015-01-13
    • US13106002
    • 2011-05-12
    • Dihong TianWen-Hsiung Chen
    • Dihong TianWen-Hsiung Chen
    • H04N5/228H04N7/18H04N7/14H04N21/4223H04N21/61H04N21/6547H04N19/82H04N5/232
    • H04N21/4223H04N5/23206H04N19/82H04N21/6125H04N21/6547
    • A method is provided in one example embodiment and includes receiving a camera dynamic parameter; determining a reference transform parameter based on the camera dynamic parameter; applying the reference transform parameter to generate a video image; and encoding the reference transform parameter in a bitstream for transmission with the video image. In other more specific instances, the method may include decoding a particular video image; decoding a particular reference transform parameter; and applying a particular reference transform parameter to the particular video image. The entropy-decoded data can undergo inverse quantization and transformation such that reference transformed data is combined with the entropy-decoded data. Additionally, the entropy-decoded data can be subjected to filtering before decoded video images are rendered on a display.
    • 在一个示例实施例中提供了一种方法,并且包括接收相机动态参数; 基于相机动态参数确定参考变换参数; 应用参考变换参数来生成视频图像; 以及在比特流中对参考变换参数进行编码以与视频图像一起传输。 在其他更具体的实例中,该方法可以包括对特定视频图像进行解码; 解码特定参考变换参数; 以及将特定参考变换参数应用于特定视频图像。 熵解码数据可以进行逆量化和变换,使得参考变换数据与熵解码数据组合。 此外,在解码的视频图像被呈现在显示器上之前,可以对熵解码的数据进行滤波。